title: On the propagation of errors.
abstract: The policy of the Protein Data Bank (PDB) that the first deposition of a small-molecule ligand, even with erroneous atom numbering, sets a precedent over accepted nomenclature rules is disputed. Recommendations regarding ligand molecules in the PDB are suggested.
authors.affiliation: Center for Biocrystallographic Research, Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan, Poland.
authors.forename: Mariusz
authors.initials: M
authors.lastname: Jaskolski
mesh_terms: D030562:Databases, Protein / Q000592:standards*; D010450:Endopeptidases / Q000737:chemistry / Q000592:standards; D006801:Humans; D008024:Ligands; D009626:Terminology as Topic
chemical_list: D008024:Ligands; D010450:Endopeptidases; C100308:uropepsin
keywords: Protein Data Bank; atom numbering; chemical nomenclature; small-molecule ligands